Company lists · Data refreshed September 2026

Top 25 Oilfield software companies based in Norway

Name: Oilfield software companies based in Norway
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 118 companies tracked

RevenueBase identified 118 oilfield software companies headquartered in Norway as of September 2026 and tracks 3,868 professional contacts across them, including 1,623 with verified work emails and 237 with mobile numbers. Stavanger is the largest hub.

This list covers oilfield software companies headquartered in Norway, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

118Companies

3,868Contacts tracked

1,623Verified emails

237Mobile numbers

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The 25 largest oilfield software companies based in Norway

Ranked by team size

Top 25 of 118 oilfield software companies based in Norway, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names oilfield software companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	MhwirthIndirect evidence	Kristiansand, NorwayHQ checked Sep 5, 2026	1,001-5,000	560
	“October 2021.” Source: company website · checked Sep 5, 2026
2	CEGALIndirect evidence	Sandnes, NorwayHQ checked Sep 5, 2026	501-1,000	503
	“Cegal is a global technology partner with deep domain expertise in the energy industry - built on 25 years of hands-on experience.” Source: company website · checked Sep 5, 2026
3	PSW TechnologyIndirect evidence	Mongstad, NorwayHQ checked Sep 5, 2026	201-500	133
	“PSW Technology offers a wide range of services and solutions to the global drilling industry.” Source: company website · checked Sep 5, 2026
4	IK GroupIndirect evidence	Stavanger, NorwayHQ checked Sep 5, 2026	51-200	123
	“IK SUBSEA - IK TOPSIDE - IK TRAX - IZOMAX - NORCLAMP Our clever use of proven technology makes your flowlines and pipelines run safely and profitably.” Source: company website · checked Sep 5, 2026
5	Techouse ASIndirect evidence	Sandnes, NorwayHQ checked Sep 5, 2026	51-200	106
	“Techouse is a leader in the provision of offshore platform processing equipment and services to the international oil & gas industry.” Source: company website · checked Sep 5, 2026
6	TCO ASPartial evidence	Indre Arna, NorwayHQ checked Sep 5, 2026	51-200	103
	“TCO is a Norwegian founded global oilfield service company, which specialises in the design, manufacture and installation of glass barrier plugs, chemical injection systems and…” Source: company website · checked Sep 5, 2026
7	Optime, A Halliburton ServiceIndirect evidence	Notodden, NorwayHQ checked Sep 5, 2026	51-200	98
	“Optime, A Halliburton Service is an innovative subsea oil and gas provider focusing on cost efficient solutions specifically towards products within the well access, well…” Source: company website · checked Sep 5, 2026
8	Sekal ASIndirect evidence	Stavanger, NorwayHQ checked Sep 5, 2026	51-200	84
	“At Sekal we are powering change.” Source: company website · checked Sep 5, 2026
9	Star Information SystemsPartial evidence	Trondheim, NorwayHQ checked Sep 5, 2026	51-200	75
	“Star Information Systems (STAR) is a leading provider of maritime software solutions for efficient and safe ship and rig operations.” Source: company website · checked Sep 5, 2026
10	Horizon56Indirect evidence	Stavanger, NorwayHQ checked Sep 5, 2026	51-200	74
	“At Horizon56, we aim to digitalize the Oil & Gas well construction process, by closing the gap between planning & execution, as well as between on and offshore.” Source: company website · checked Sep 5, 2026
11	IKM AconaIndirect evidence	Sandnes, NorwayHQ checked Sep 5, 2026	51-200	73
	“IKM Acona is a leading provider of services to the oil and gas industry covering the complete lifecycle of oil and gas projects.” Source: company website · checked Sep 5, 2026
12	InflowcontrolIndirect evidence	Porsgrunn, NorwayHQ checked Sep 5, 2026	51-200	55
	“We are oil and gas engineers with decades of expertise in reservoir engineering and well productivity.” Source: company website · checked Sep 5, 2026
13	OliasoftPartial evidence	Oslo, NorwayHQ checked Sep 5, 2026	51-200	53
	“Oliasoft is a global Software-as-a-Service (SaaS) company enabling digitization and automation through sophisticated cloud engineering software.” Source: company website · checked Sep 5, 2026
14	WhitsonStrong evidence	Trondheim, NorwayHQ checked Sep 5, 2026	11-50	52
	“whitson supports energy companies, oilfield service providers, investors, and government organizations with software, consulting, and training across PVT, well performance, gas…” Source: company website · checked Sep 5, 2026
15	FutureonIndirect evidence	Oslo, NorwayHQ checked Sep 5, 2026	11-50	44
	“FutureOn began with a question: why should energy operators and service companies wait months to design fields when technology could make it happen in weeks?” Source: company website · checked Sep 5, 2026
16	Well Expertise ASIndirect evidence	Stavanger, NorwayHQ checked Sep 5, 2026	11-50	42
	“Well Expertise can tailor-make project specific deliverables for all disciplines for your next Exploration, Appraisal, Development or Decom Project.” Source: company website · checked Sep 5, 2026
17	Sharp ReflectionsIndirect evidence	Stavanger, NorwayHQ checked Sep 5, 2026	11-50	39
	“Sharp Reflections was built on a bold idea-to reinvent seismic data processing and analysis.” Source: company website · checked Sep 5, 2026
18	WellcemIndirect evidence	Stavanger, NorwayHQ checked Sep 5, 2026	11-50	38
	“Wellcem is an oil service company headquartered in Norway with branches located around the world.” Source: company website · checked Sep 5, 2026
19	Tomax ASIndirect evidence	Stavanger, NorwayHQ checked Sep 5, 2026	11-50	36
	“Formed in 2005, Tomax is focused on developing technology for improving drilling efficiency with modern drilling systems.” Source: company website · checked Sep 5, 2026
20	PTC An Interwell CompanyIndirect evidence	Stavanger, NorwayHQ checked Sep 5, 2026	51-200	32
	“PTC helps oil and gas production companies address two of their biggest challenges:* Increasing well uptime & production * Assuring & enhancing well integrity We do this, by…” Source: company website · checked Sep 5, 2026
21	Fluid Control Service ASIndirect evidence	Sola, NorwayHQ checked Sep 5, 2026	11-50	31
	“Fluid Control Service (FCS) is a leading provider of integrated fluid transfer solutions to the offshore and energy sectors.” Source: company website · checked Sep 5, 2026
22	Stimline DigitalPartial evidence	4623 Kristiansand, NorwayHQ checked Sep 5, 2026	11-50	30
	“Stimline Digital, a software company dedicated to improving workflows within Energy Companies and Service Companies.” Source: company website · checked Sep 5, 2026
23	KeystonePartial evidence	Storhaug, NorwayHQ checked Sep 5, 2026	11-50	28
	“As the leading global supplier of planning and execution software for well operations, we believe the future is digital, connected, and collaborative.” Source: company website · checked Sep 5, 2026
24	Reelwell ASIndirect evidence	Sola, NorwayHQ checked Sep 5, 2026	11-50	25
	“CONNECTING DOWNHOLE TO THE FUTURE With support in both Stavanger and Houston, Reelwell has developed pioneering technologies offering a step-change in well construction and…” Source: company website · checked Sep 5, 2026
25	Wellpartner ASIndirect evidence	Tananger, NorwayHQ checked Sep 5, 2026	51-200	23
	“WellPartner AS is a service company that delivers technical expertise and high quality equipment and services within subsea drilling, completion and intervention operations.” Source: company website · checked Sep 5, 2026

Showing 25 of 118 oilfield software companies based in Norway

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Oilfield software companies based in Norway at a glance

As of Sep 5, 2026

11-50Median size (employees)

StavangerLargest hub · 35 HQs

237Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Verified emails by last verification

0–30

1,465

31–60

61–90

90–180

180+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among oilfield software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Norway whose own description of what they do matches “oilfield software companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among oilfield software companies, and records with no verified work email. Companies headquartered outside Norway are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 1,623 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 5, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Oilfield software companies by metro

Oilfield software companies in Stavanger35

Frequently asked

How many oilfield software companies are there based in Norway?

RevenueBase identified 118 oilfield software companies headquartered in Norway as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Mhwirth, headquartered in Kristiansand, tops this list with the largest team on record.

Which city has the most oilfield software companies?

Stavanger leads with 35 headquartered companies, followed by Trondheim (11) and Oslo (9).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,623 verified decision-maker contacts tracked across these 118 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.